Pre-built binaries are provided on the releases page[0] of the repo. It's not a single-binary program, so they're all together in a .tar.gz.
The author has a page[1] on the comparison to Nix/Guix. The gist of it is that "these simplifications range from less code, fewer commands, no C++, no monads, no lazy functional programming, no glibc."
Can you somehow provide pre-built binaries?